When Richie confesses to Duncan that he and Lina haven't had sex because he believes that he's not very good at it, Duncan encourages him to take the risk. Meanwhile, Ethan finds out that a man to whom Kat is attracted (stalking, actually) is the father of a patient, and he sets them up on a date.
A group of twenty-somethings who were third-grade classmates are reunited at a surprise party 20 years later. What will happen when they find out what each other's lives are like now?